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/** \file     Picture.h
 *  \brief    Description of a coded picture
 */

#ifndef __PICTURE__
#define __PICTURE__

#include "CommonDef.h"

#include "Common.h"
#include "Unit.h"
#include "Buffer.h"
#include "Unit.h"
#include "Slice.h"
#include "CodingStructure.h"
#include "Hash.h"
#include "MCTS.h"
#include "SEIColourTransform.h"
#include <deque>
#include "SEIFilmGrainSynthesizer.h"

class SEI;
class AQpLayer;

typedef std::list<SEI*> SEIMessages;

#define M_BUFS(JID,PID) m_bufs[PID]

#if GDR_ENABLED
struct GdrPicParam
{
  bool inGdrInterval = false;
  int  verBoundary   = -1;
};
#endif

struct Picture : public UnitArea
{
  uint32_t margin;
  Picture();

  void create(const bool useWrapAround, const ChromaFormat& _chromaFormat, const Size& size, const unsigned _maxCUSize,
              const unsigned margin, const bool bDecoder, const int layerId, const bool enablePostFilteringForHFR);
  void destroy();

  void createTempBuffers( const unsigned _maxCUSize, bool useFilterFrame, bool resChange, bool decoder, bool isFgFiltered);
  void destroyTempBuffers();

  int                       m_padValue;
  bool                      m_isMctfFiltered;
  SEIFilmGrainSynthesizer*  m_grainCharacteristic;
  PelStorage*               m_grainBuf;
  void              createGrainSynthesizer(bool firstPictureInSequence, SEIFilmGrainSynthesizer* grainCharacteristics, PelStorage* grainBuf, int width, int height, ChromaFormat fmt, int bitDepth);
  PelUnitBuf        getDisplayBufFG       (bool wrap = false);

  SEIColourTransformApply* m_colourTranfParams;
  PelStorage*              m_invColourTransfBuf;
  void              createColourTransfProcessor(bool firstPictureInSequence, SEIColourTransformApply* ctiCharacteristics, PelStorage* ctiBuf, int width, int height, ChromaFormat fmt, int bitDepth);
  PelUnitBuf        getDisplayBuf();

  SEIMessages m_nnpfcActivated;

  void copyToPic(const SPS *sps, PelStorage *pcPicYuvSrc, PelStorage *pcPicYuvDst);
  Picture*  findPrevPicPOC(Picture* pcPic, PicList* pcListPic);
  Picture*  findNextPicPOC(Picture* pcPic, PicList* pcListPic);
  void  xOutputPostFilteredPic(Picture* pcPic, PicList* pcListPic, int blendingRatio);
  void  xOutputPreFilteredPic(Picture* pcPic, PicList* pcListPic, int blendingRatio, int intraPeriod);

         PelBuf     getOrigBuf(const CompArea &blk);
  const CPelBuf     getOrigBuf(const CompArea &blk) const;
         PelUnitBuf getOrigBuf(const UnitArea &unit);
  const CPelUnitBuf getOrigBuf(const UnitArea &unit) const;
         PelUnitBuf getOrigBuf();
  const CPelUnitBuf getOrigBuf() const;
         PelBuf     getOrigBuf(const ComponentID compID);
  const CPelBuf     getOrigBuf(const ComponentID compID) const;
         PelBuf     getTrueOrigBuf(const ComponentID compID);
  const CPelBuf     getTrueOrigBuf(const ComponentID compID) const;
         PelUnitBuf getTrueOrigBuf();
  const CPelUnitBuf getTrueOrigBuf() const;
        PelBuf      getTrueOrigBuf(const CompArea &blk);
  const CPelBuf     getTrueOrigBuf(const CompArea &blk) const;

         PelUnitBuf getFilteredOrigBuf();
  const CPelUnitBuf getFilteredOrigBuf() const;
         PelBuf     getFilteredOrigBuf(const CompArea &blk);
  const CPelBuf     getFilteredOrigBuf(const CompArea &blk) const;

         PelBuf     getPredBuf(const CompArea &blk);
  const CPelBuf     getPredBuf(const CompArea &blk) const;
         PelUnitBuf getPredBuf(const UnitArea &unit);
  const CPelUnitBuf getPredBuf(const UnitArea &unit) const;

         PelBuf     getResiBuf(const CompArea &blk);
  const CPelBuf     getResiBuf(const CompArea &blk) const;
         PelUnitBuf getResiBuf(const UnitArea &unit);
  const CPelUnitBuf getResiBuf(const UnitArea &unit) const;

         PelBuf     getRecoBuf(const ComponentID compID, bool wrap=false);
  const CPelBuf     getRecoBuf(const ComponentID compID, bool wrap=false) const;
         PelBuf     getRecoBuf(const CompArea &blk, bool wrap=false);
  const CPelBuf     getRecoBuf(const CompArea &blk, bool wrap=false) const;
         PelUnitBuf getRecoBuf(const UnitArea &unit, bool wrap=false);
  const CPelUnitBuf getRecoBuf(const UnitArea &unit, bool wrap=false) const;
         PelUnitBuf getRecoBuf(bool wrap=false);
  const CPelUnitBuf getRecoBuf(bool wrap=false) const;

         PelBuf     getBuf(const ComponentID compID, const PictureType &type);
  const CPelBuf     getBuf(const ComponentID compID, const PictureType &type) const;
         PelBuf     getBuf(const CompArea &blk,      const PictureType &type);
  const CPelBuf     getBuf(const CompArea &blk,      const PictureType &type) const;
         PelUnitBuf getBuf(const UnitArea &unit,     const PictureType &type);
  const CPelUnitBuf getBuf(const UnitArea &unit,     const PictureType &type) const;

        PelUnitBuf getPostRecBuf();
  const CPelUnitBuf getPostRecBuf() const;

  void extendPicBorder( const PPS *pps );
  void extendWrapBorder( const PPS *pps );
  void finalInit( const VPS* vps, const SPS& sps, const PPS& pps, PicHeader *picHeader, APS** alfApss, APS* lmcsAps, APS* scalingListAps );

  int  getPOC()                               const { return poc; }
  int  getDecodingOrderNumber()               const { return m_decodingOrderNumber; }
  void setDecodingOrderNumber(const int val)        { m_decodingOrderNumber = val;  }
  NalUnitType getPictureType()                const { return m_pictureType;         }
  void setPictureType(const NalUnitType val)        { m_pictureType = val;          }
  void        setBorderExtension(bool flag)
  {
    m_extendedBorder = flag;
  }
  Pel* getOrigin( const PictureType &type, const ComponentID compID ) const;
  int  getEdrapRapId()                        const { return edrapRapId ; }
  void setEdrapRapId(const int val)                 { edrapRapId = val; }

  void setLossyQPValue(int i)                 { m_lossyQP = i; }
  int getLossyQPValue()                       const { return m_lossyQP; }
  void      fillSliceLossyLosslessArray(std::vector<uint16_t> sliceLosslessArray, bool mixedLossyLossless);
  bool      losslessSlice(uint32_t sliceIdx)  const { return m_lossylosslessSliceArray[sliceIdx]; }

  int           getSpliceIdx(uint32_t idx) const { return m_spliceIdx[idx]; }
  void          setSpliceIdx(uint32_t idx, int poc) { m_spliceIdx[idx] = poc; }
  void          createSpliceIdx(int nums);
  bool          getSpliceFull();
  static void   sampleRateConv(const ScalingRatio scalingRatio, int scaleX, int scaleY, const CPelBuf &beforeScale,
                               const int beforeScaleLeftOffset, const int beforeScaleTopOffset, const PelBuf &afterScale,
                               const int afterScaleLeftOffset, const int afterScaleTopOffset, const int bitDepth,
                               const bool useLumaFilter, const bool downsampling,
                              const bool horCollocatedPositionFlag, const bool verCollocatedPositionFlag,
                              const bool rescaleForDisplay, const int upscaleFilterForDisplay
  );

  static void rescalePicture(const ScalingRatio scalingRatio, const CPelUnitBuf& beforeScaling,
                             const Window& scalingWindowBefore, const PelUnitBuf& afterScaling,
                             const Window& scalingWindowAfter, const ChromaFormat chromaFormatIdc,
                             const BitDepths& bitDepths, const bool useLumaFilter, const bool downsampling,
                             const bool horCollocatedChromaFlag, const bool verCollocatedChromaFlag,
                             bool rescaleForDisplay = false, int upscaleFilterForDisplay = 0);

private:
  Window        m_conformanceWindow;
  Window        m_scalingWindow;
  int           m_decodingOrderNumber;
  NalUnitType   m_pictureType;
#if GREEN_METADATA_SEI_ENABLED
  FeatureCounterStruct m_featureCounter;
#endif
public:
  bool m_isSubPicBorderSaved;

  PelStorage m_bufSubPicAbove;
  PelStorage m_bufSubPicBelow;
  PelStorage m_bufSubPicLeft;
  PelStorage m_bufSubPicRight;

  PelStorage m_bufWrapSubPicAbove;
  PelStorage m_bufWrapSubPicBelow;

  void    saveSubPicBorder(int POC, int subPicX0, int subPicY0, int subPicWidth, int subPicHeight);
  void  extendSubPicBorder(int POC, int subPicX0, int subPicY0, int subPicWidth, int subPicHeight);
  void restoreSubPicBorder(int POC, int subPicX0, int subPicY0, int subPicWidth, int subPicHeight);
#if GREEN_METADATA_SEI_ENABLED
  void setFeatureCounter (FeatureCounterStruct b ) { m_featureCounter = b;}
  FeatureCounterStruct getFeatureCounter (){return m_featureCounter;}
#endif
  
  bool getSubPicSaved()          { return m_isSubPicBorderSaved; }
  void setSubPicSaved(bool bVal) { m_isSubPicBorderSaved = bVal; }
  bool     m_extendedBorder;
  bool m_wrapAroundValid;
  unsigned m_wrapAroundOffset;
  bool referenced;
  bool reconstructed;
  bool neededForOutput;
  bool usedByCurr;
  bool longTerm;
  bool topField;
  bool fieldPic;
  EnumArray<int, ChannelType> m_prevQP;
  bool precedingDRAP; // preceding a DRAP picture in decoding order
  int  edrapRapId;
  bool nonReferencePictureFlag;

  int  poc;
  uint32_t temporalId;
  int      layerId;
  std::vector<SubPic> subPictures;
  int numSlices;
  std::vector<int> sliceSubpicIdx;

  bool subLayerNonReferencePictureDueToSTSA;

  int* m_spliceIdx;
  int  m_ctuNums;
  int m_lossyQP;
  std::vector<bool> m_lossylosslessSliceArray;
  bool interLayerRefPicFlag;
  bool mixedNaluTypesInPicFlag;
  bool isEosPresentInPic;

  PelStorage m_bufs[NUM_PIC_TYPES];
  const Picture*           unscaledPic;

  Hash               m_hashMap;
  Hash              *getHashMap() { return &m_hashMap; }
  const Hash        *getHashMap() const { return &m_hashMap; }
  void               addPictureToHashMapForInter();

  CodingStructure*   cs;
#if GDR_ENABLED
  GdrPicParam        gdrParam;
#endif
  std::deque<Slice*> slices;
  SEIMessages        SEIs;

  uint32_t           getPicWidthInLumaSamples() const                                { return  getRecoBuf( COMPONENT_Y ).width; }
  uint32_t           getPicHeightInLumaSamples() const                               { return  getRecoBuf( COMPONENT_Y ).height; }
  Window&            getConformanceWindow()                                          { return  m_conformanceWindow; }
  const Window&      getConformanceWindow() const                                    { return  m_conformanceWindow; }
  Window&            getScalingWindow()                                              { return  m_scalingWindow; }
  const Window&      getScalingWindow()                                        const { return  m_scalingWindow; }

  bool isRefScaled(const PPS* pps) const
  {
    return unscaledPic->getPicWidthInLumaSamples() != pps->getPicWidthInLumaSamples()
           || unscaledPic->getPicHeightInLumaSamples() != pps->getPicHeightInLumaSamples()
           || unscaledPic->getScalingWindow() != pps->getScalingWindow();
  }

  bool               isWrapAroundEnabled( const PPS* pps ) const                     { return  pps->getWrapAroundEnabledFlag() && !isRefScaled( pps ); }

  void         allocateNewSlice();
  Slice        *swapSliceObject(Slice * p, uint32_t i);
  void         clearSliceBuffer();

  MCTSInfo     mctsInfo;
  std::vector<AQpLayer*> aqlayer;

  ChromaFormat m_chromaFormatIdc;
  BitDepths    m_bitDepths;

#if !KEEP_PRED_AND_RESI_SIGNALS
private:
  UnitArea m_ctuArea;
#endif

  std::vector<AlfMode> m_alfModes[MAX_NUM_COMPONENT];

  std::vector<SAOBlkParam> m_sao[2];

public:
  SAOBlkParam    *getSAO(int id = 0)                        { return &m_sao[id][0]; };
  void            resizeSAO(unsigned numEntries, int dstid) { m_sao[dstid].resize(numEntries); }
  void            copySAO(const Picture& src, int dstid)    { std::copy(src.m_sao[0].begin(), src.m_sao[0].end(), m_sao[dstid].begin()); }

#if ENABLE_QPA
  std::vector<double>     m_uEnerHpCtu;                         ///< CTU-wise L2 or squared L1 norm of high-passed luma input
  std::vector<Pel>        m_iOffsetCtu;                         ///< CTU-wise DC offset (later QP index offset) of luma input
#if ENABLE_QPA_SUB_CTU
  std::vector<int8_t>     m_subCtuQP;                           ///< sub-CTU-wise adapted QPs for delta-QP depth of 1 or more
#endif
#endif

  void copyAlfData(const Picture &p);
  void resizeAlfData(int numEntries);

  AlfMode *getAlfModes(int compIdx) { return m_alfModes[compIdx].data(); }
};

int calcAndPrintHashStatus(const CPelUnitBuf& pic, const class SEIDecodedPictureHash* pictureHashSEI, const BitDepths &bitDepths, const MsgLevel msgl);

uint32_t calcMD5(const CPelUnitBuf& pic, PictureHash &digest, const BitDepths &bitDepths);
uint32_t calcMD5WithCropping(const CPelUnitBuf &pic, PictureHash &digest, const BitDepths &bitDepths,
                             const int leftOffset, const int rightOffset, const int topOffset, const int bottomOffset);

std::string hashToString(const PictureHash &digest, int numChar);

typedef std::list<Picture*> PicList;

#endif
